Shu Guang
Shu Guang
Established in 1992, Wenzhou Shuguang Fuse Co., Ltd. (formerly Yueqing Shuguang Fuse Factory) is strategically located in Yueqing, Zhejiang Province—the renowned "Electrical Capital of China." As a power technology enterprise, we integrate research, development, production, sales, and service into a cohesive ecosystem focused on electrical safety and circuit protection.
For over three decades, we have remained at the forefront of the fuse manufacturing industry. Our commitment to innovation has allowed us to transition from a local workshop to a globally recognized supplier of CE certified fuse and voltage solutions. We pride ourselves on our technical depth, ensuring that every product leaving our factory meets the rigorous demands of modern electrical infrastructure.
Safety is non-negotiable in high-voltage environments. Our company is officially designated by the Ministry of Electric Power Industry to produce specialized high-voltage fuses across various voltage levels. This includes high-voltage current-limiting fuses, capacitor protection fuses, voltage transformer protection fuses, zinc oxide arresters, drop-out fuses, and high-voltage insulators.
Our products undergo exhaustive testing at world-class facilities, including the High-power Test Station of the Electric Power Research Institute, the National High-voltage Electrical Apparatus Quality Supervision and Inspection Center, and the Xi'an High-voltage Electrical Apparatus Research Institute.
Compliance with IEC60282-1, IEC282-2-1995, IEC60644, and IEC60470 ensures global interoperability.
Adherence to DIN43625 and BS2692 for European and British standard markets.
Our manufacturing processes are ISO9001:2000 quality system certified for absolute reliability.
The global demand for CE certified fuses and voltage protection is witnessing an unprecedented surge, driven by the aggressive modernization of aging power grids and the rapid integration of renewable energy sources. As nations transition toward "Smart Grids," the need for precise, fast-acting, and high-breaking capacity fuses has become paramount.
Wind and solar farms operate under fluctuating loads and environmental conditions. Our fuses are specifically engineered to handle these variables, providing protection for high-voltage transformers and inverters. The shift toward sustainable energy requires components that can withstand higher DC voltages, a field where Wenzhou Shuguang is actively innovating.
The EV revolution is not just about the cars—it's about the charging infrastructure. High-voltage EV fuses are critical for protecting DC fast-charging stations and the internal battery management systems of electric vehicles. Our wholesale EV fuses are designed to meet the compact space and high-thermal resistance requirements of the automotive industry.
As mega-cities expand, the density of the electrical distribution network increases. This requires miniaturized yet powerful fuse solutions like our HRC (High Rupturing Capacity) fuses, which prevent catastrophic failures in densely populated industrial zones.
International procurement managers today look for more than just a low price; they seek a balance of technical expertise, capacity, and compliance. Wenzhou Shuguang Fuse Co., Ltd. serves as a benchmark for Chinese manufacturing excellence.
Our "Shu Rong" brand products are engineered for diverse environments, ensuring stability across various industries:
Protecting provincial power grids in China and state-owned utilities in Southeast Asia and Africa. Our drop-out fuses and lightning arresters are essential for overhead line protection.
Specially designed Oil-Immersed Transformer fuses provide back-up protection in volatile environments where spark suppression is critical.
Heavy machinery and industrial motors utilize our RT18 low voltage fuses and HRC current-limiting fuses to prevent expensive downtime caused by overcurrent.
Our sales network spans the globe, from the domestic provincial power companies of China to the emerging markets of the Middle East, Europe, and South America. We consistently rank among the top in the industry for domestic sales volume, a testament to our Authority and Trustworthiness in the power sector.
As we look to the future, Wenzhou Shuguang Fuse Co., Ltd. is committed to pioneering smart protection devices that integrate digital monitoring. We invite global partners to collaborate with us in building a safer, more efficient power future.
| Product Category | Voltage Range | Standard Compliance |
|---|---|---|
| High Voltage Current Limiting Fuses | 3.6kV - 40.5kV | DIN 43625, IEC 60282-1 |
| Transformer Protection Fuses | 10kV - 36kV | BS 2692, IEC 60282-1 |
| EV / New Energy Fuses | Up to 1000V DC | ISO 8820, UL 248 |
| Low Voltage Control Fuses | 400V - 690V | IEC 60269 |
